"Under the Influence" marked a huge evolutionary step from the speedy heavy metal of their two previous albums to the thrash metal band we now know. The most immediately noticeable difference are the changes in the production department, which finally caught up with that of their peers. The whole album generally sounds clearer and better, and it would be Overkill's best production if it were not for the clanking of D.D. Verni's bass. While an audible bass is, simply because of the rarity of occurrence, something special on a thrash metal album, getting used the bass on Under the Influence requires a lot of patience.

For me, this is the best Overkill album - without influences of Iron Maiden (1984-1987), without groove sounding (1993-2007), without routine and cliches (2008-2012).
This record sounds more fierce than 'The Years Of Decay' and more varied and interesting than 'Horrorscope'.